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decompression using the lifting

高斯迭代算法基本程序，用于求解矩阵方程，对初学者很有帮助(Gauss iterative algorithm for solving the matrix equation, useful for beginners)

利用FD方法求解第一类边界条件下的矩形金属槽(FD method for solving the first boundary condition of the rectangular metal trough)

pk_alfabetta_dq coordinate converter

一个matlab程序利用PSO求解复杂函数的最值问题(A matlab program using PSO to solve the problem of complex functions of most value)

为一幅图像加椒盐噪声，分别使用3*3邻域，5*5邻域和超限像素平滑法对图像进行平滑处理。

Sum of values ignoring NaNs

预报误差法参数辨识-松弛的思想，采用的是通用的平面波展开法,表示出两帧图像间各个像素点的相对情况。( Prediction Error Method for Parameter Identification- the idea of relaxation, Using common plane wave expansion method, Between two images showing the relative circumstances of each pixel.)

说明：  扩展卡尔曼滤波的一个原理程序，真实值为常量。(A principle extended Kalman filter procedure, the real value is constant.)

通过步进频率技术实现二维信号的带宽合成，提高雷达信号的距离向分辨率。(Through the step frequency technology to 2 d signal bandwidth synthesis, improve the distance of the radar signal to the resolution. )